Stove or heater



Nov. 6, 1934. H. LANGE 1,979,889

STOVE OR HEATER Filed Oct. 19, 1931 4 Sheets-Sheet l Nov. 6, 1934. LANGE I 1,979,889

STOVE OR HEATER Filed Oct. 19 1931 4 Sheets-Sheet 2 H.LANGE STOVE OR HEATER Nov. 6, 1934.

Filed Opt. 19, 1951 4 Sheets-Sheet 3 Nov. 6, 1934. H. LANGE STOVE OR HEATER Filed Oct. 19, 1931 4 Sheets-Sheet 4 Patented Nov. 6, 1934 Unit s'rs'r oFFicE Application October 19,

'8 Claims.

My invention relates to improvements in stoves or heaters and has particular reference to heaters of the air circulating type for use in dwellings and other places although not limited to this '5" use.

Briefly and generally, it is an object of the present invention to provide a novel and improved stove or heater which will be neat and attractive in appearance and characterized by a ic; simplicity and compactness of construction, the component parts of the device lending themselves to ready assembly and such parts as the burner elements, and others, as are subjected to the wear are adapted to be readily inspected or removed is: and replaced without disassembling of the entire or any substantial portions of the heater itself:

A further and more specific object of the invention is to provide a stove or heater having positive means for conducting heated gases 26'; (which may be the products of combustion) in such fashion as to assure of the heating of the floor upon which'the heater is mounted, thus to overcome the outstanding criticism levied against the devices of the prior art which, so far as I am aware, have lacked means for withdrawing heat downwardly.

Still another object of the invention is to-provide a novel arrangement of fiues for conducting" the products of combustion downwardly and throughout the entire area of the base of the heater and then upwardly through a smoke pipe,-there being valve or damper means for controlling the gases through such fines and which valve or damper means may be adjusted so as to admit of direct communication between the burner chamber and the smoke pipe.

Another object of the invention is to provide a novel self-contained magazine in a heater of the type specified-which magazine incorporates a 4 3 removable. portion which gives'ready access to the interior of the heater.

The invention also resides in certain novel features of construction, combination and arrangement of the various parts, and in modes of operation,-a1l of which will be readily apparent to those skilled in the art upon reference to the accompanying drawings in connection with the detailed description matter which follows.

51 In the drawings which disclose what now appears to be a preferred embodiment of the in-'- vention,-

Fig. l is a central vertical sectional View through a heater of the jacketed air circulating type embodying my invention;

1931, Serial No. 569,793

Fig. 2 is a sectional View taken on the lines 22 of Fig. 1;

Fig. 3 is a horizontal sectional view taken on the lines 3-3 of Fig. 1;

Fig. 4 is a fragmentary plan View of the grate supporting member and showing the grate in dotted lines;

Fig. 5 is a front elevational View of the frontal casing plate with the doors removed and illus-J trating the fire pot and the cut-out in the sides of the plate which admit of removal of the fire pot Without dismantling of the stove frame;

Fig. 6 is a group perspective View illustrating a portion of the front plate of Fig. 5 in association with one wall of the heater and the novel cross bar which closes the slots in the flange to confine the fire pot in place;

Fig. 7 is a fragmentary view in vertical section illustrating the relationship of the cross bar to the top frame plate and fire pot;

Fig. 8 is a detailed view in vertical cross section illustrating the attachment of the top frame plateof Fig. 5 to the grate supporting plate.

Referring specifically to the drawings, wherein the same reference characters have been used to designate the same parts in all views, numeral 2 denotes a skirt or base portion carrying the legs 3 and providing the marginal seat 2a which supports the base plate 4 as shown in Figs. 1 and 3. I

Midway between the side edges of the base plate 4 is an upstanding plate 5 whose forward end terminates short of the front .of base plate 4 so as to divide the rear portions thereof into separate fiues or passage ways 7a, 7b communicating with the front chamber 7,-it being observed that the top wall of such chamber 7 is defined by the bottomG or ash-pit portion 6 of the heater proper while the front, side and rear walls of such chamber '7. are defined by the members 8, 10, 11 as will be evident from examination of Figs. 1, 2, and 3.

The partition plate 5 which defines the flues 7a, 7b hasat its rear end a partitioning extension 5:2 as clearly shown in Figs. 1 and 2 and which divides the space, between the rear wall of the fire box and ash-pit portion 6 of the heater and the adjacent surface of plate ll into separate lines or passage ways 12, 13 which'communicata. respectively,- with the horizontal flues or pas-. sageway portions -'7b, 7a as will be apparent from Figs. 1 and 2. The partitioning plate 5, 5a in addition to providing the fines 12, 7b and 13, 7a also servesas a reinforcement or support for the stove structure and particularly the fire box and. ash-pit portion 6. l l I As is evident from Fig. 1 the side walls 10 extend to the full height of the heater,that is to say from the base plate 4 to the top of the magazine which will be described later. Concerning the wall 11 providing the rear wall of the fiues 12, 13 it will be evident from Figs. 1 and 3 that such wall is anchored to the walls 10 at its side edges, the stock of such wall 11 adjacent its side edges being bent inwardly as indicated at 111), while the upper end of the plate or wall member 11 is provided with the thimble or sleeve portion 11a which is adapted to receive the elbow 14 which is disclosed in Fig. 1. It should be noted in passing, that the front wall 8 of the chamber '7 also provides the front wall of the ash-pit and has the opening 8a whereby access may be had to the ash-pit. Also such wall 8 has the clean-out opening for the fines and chamber 7a, 7b and '7 which opening is normally closed by the removable door 9 having the inwardly extended weight portion 9a..

Adverting to the fines 12, 13 and having particular reference to Figs. 1 and 2 of the drawings, it will be noted that the flue 12 leading tends outwardly through the side of the heater as shown in Fig. 2. When the valve or damper 19 is open, it will be obvious that the products of combustion will pass directly from the combustion chamber 16 through the chamber 15 to the smoke pipe 14. However, when the valve or damper 19 is in its closed position as illustrated in Fig. 1 the direct passage of the gases from the combustion chamber into the chamber 15 will be prevented and the gases will be caused to pass out through the adjacent opening 20 into'the flue 13. It should here be observed that both fiues 12, 13 are closed at their upper ends by means of the plate 21 resting upon the upper end of the wall 11 and the proximate edge of the rear wall of the fire box 6. Thus when the damper 19 is closed, it will be apparent that the-gases will be positively withdrawn down through the flue 13 into the horizontal flue 7a. adjacent to base plate 4 from which they willpass into the base chamber 7 and thence to the flue 7b and upwardly to the fiue 12 to the outer chamber 15 and into the smoke pipe. This positive withdrawing of the hot gases containing the products of combustion down to and around and along the surface of the baseplate 4 will effectually bring about the heating of the floor area beneath and. adjacent the stove besides bringing about better and more efficient results than could possibly be obtained by the products of combustion were they directed from the combustion chamber immediately to the chimney. Guards 2011. (Figs. 1 and 2) and located at the bottom edge of the opening 20 serve to hold the fire bed while permitting draft therethrough. into the fine 13.

I have also illustrated in Figs. 1 and '2 the sliding damper 22 controlling the opening23 in the rear wall of the fire box 6 at a point slightly above the grate 26 and below the fire pot 17.

. This sliding damper 22 may be operated from the side of the heater by the rod 229 shown in .port the cap frame 3'7 of the fuel magazine.

Fig. 2 and serves to act as a check on the fire when opened since it enables the draft to pass directly into the flue 12 leading to the outlet chamber 15.

The ash-pit door 24, as previously intimated, is carried by the front wall 8 of the ash-pit and chamber 7 and serves to substantially cover such wall as indicated. The ash-pit preferably is provided with the removable ash-pan 25 as disclosed in Fig. 1. The ash-pit has the usual draft providing valve or damper 240..

Coming now to the matter of the grate 26, it will be observed that the same, as indicated in Figs. 1 and 4, is of circular form and has a marginal flange supported by the horizontal plate 27 through the bearings 28, 30 of the latter. The ball-bearings 28 are carried in bearing boxes 29 adjacent the rear portion of the fire box 6 while the roller bearing 30 is supported by the notched flange 27c and the adjacent recess 31b of the frontal flange plate 31 (Fig. 5) which is provided at the upper frontal portion of the heater. The grate 26 has the central horizontally pivoted portion 26a, and this is adapted to be rocked and the entire grate 26 oscillated by the shaker arm 26b indicated in dotted lines in Fig. 4.

The frontal flange plate 31 of Fig. 5 is shown (Fig. 1) as having its lower edge supported upon the grate mounting plate 27 and this frontal plate 31 has the open work frame portion 31a. which provides the openings for the two sets of front doors 33, 34 having the mica windows 33a, 34a as shown.

The fire pot 1'7, to which reference has previously been made is provided with the marginal rim or flange 170; which rests upon the slideways 101) of the side walls (Figs. 5 and 6) and upon the rear shoulder 6a. of the fire box (Fig. 1) while the front portion of the fire box is supported (Fig. '7) by the flange 32a of the removable cross bar 32. When the cross bar 32 is removed, the fire pot can be slid out and the grate 26 removed. This will be referred to in detail later on in connection with Figs. 5 and 6.

Coming to Figs. 1 and 2 and referring particularly to Fig. 1, it will be noted that I have provided above the combustion chamber 16 a magazine supply for the fuel and which incorporates the vertically movable conduit member 35 whose la eral flange 35a at the upper end is adapted to be supported by the side shoulders 10a of the side plates 10, and by the shoulder 31d of the front plate 31. A hopper-like fixed magazine portion communicates with the removable magazine member 35 and is provided by the front wall 31, the side walls 10 and the short plate 38 whose upper end is seated in a groove 37a in the cap plate 37 and whose lower end has the seating lugs 38a engaging the rear edge of such removable magazine portion 35 as indicated. A plate 36 supported by the flue-cover plate 21 cooperates with the side plates 10 and front plate 31 to sup- The cap frame 37 is provided with the swingable cover or closure 39 illustrated in Figs. 1 and 2 which may be swung aside to permit fuel to be fed into the magazine.

Obviously the provision of the removable magazine member 35 will enable ready access to be had to the interior oft-he combustion chamber 16. The magazine is entirely contained within the stove or heater and will enable the same to run for a long time without re-fueling.

A steel or other metal jacket surrounds the side and rear portions of the heater proper to provide 150 the vertical air passageways and comprises the walls 40, 41 (Figs. 1, 2 and 3),-the same being supported upon the base plate 4. The base plate 4 is provided with holes 4a (Figs. 1, 2 and 3) supplying air to the space between the heater proper and the walls 40, 41. The rear wall may be provided with the air inlets 41a, 41b and with an air outlet 410 as shown.

The top of the heater has the frame or closure 42 which is open at the center to seat upon the cap frame 3'7 while the marginal edges of closure plate- 42 rest upon the upper ends of the walls 40, 41 and the frontal downwardly sloping panel wall 43 which is supported by the front plate 3l,all as indicated in Fig.1. The closure plate 42 of the air flues is provided with suitable openings as indicated in Fig. 1 by reference character 4211.

In order that the air emitted from the air flues between the plates 40, 41.and the heater 6 may be appropriately moistened, I provide the water receptacle 44 which is supported upon the flue closing plate 21 as indicated in Fig. 1. Since flue closure plate 21 partially overlies the flrepot, it will be kept hot so as to assure evaporating of the water in vessel 44.

Referring to Figs. 5 and 6 it is noted that the front plate 31 is provided with slots or cut-outs 50 registering with the slide ways 10b of the side walls 10 which support the flange 17a. of the fire pot 17. The intermediate horizontal bar portion 310 ofthe frame part 310. of the plate 31 is provided with the lineal rib 52 having the offset or recess 53. The removable cross bar 32 which is adapted to close the cut-outs 50 is secured against the front plate 31 by means of bolts 51a engaging through apertured ears 51 of the front plate 31. The cross bar 32 is provided at its inner surface with a rib 54 which likewise is provided with an offset or recess 55, while above the recess is a lug 56 which is spaced from the walls of such recess 55. When the removable cross bar 32 is clamped in position against the intermediate horizontal bar portion 310 of the plate 31 the lug 56 will seat in the recess 53 of the rib 52 of such bar 310, as

clearly indicated in Fig. '7, so that the intermediate portion of such cross bar 32 will be positively supported by the frontal frame plate 31,it being remembered that the flange 32a (Fig. 7) of the cross bar 32 serves to normally support the front flange portion 17a of the fire box 1'7. The rib 54 of the removable cross bar 32 underlies the rib 52 of the front plate cross bar 31c as denoted in Fig. 7.

I find it desirable to provide the removable cross bar 32 with the inwardly extending end seats 5'7 for the extension plates 58 which are adapted to seat upon the countersunk seats as shown at 60 adjacent the guideways 10b. The extension plate 58 has the inner edges engaging a considerable portion of the fire pct 17 below its flange 17a so as to positively clamp the same in place when the removable cross bar is tightened into position as suggested in the dotted lines in Fig. 6. Screws 59 provided with nuts are adapted to lock the extension plates 58 to their seats 57.

Turning to Fig. 8 I have there illustrated the seating engagement of the lower portion of the front plate 31 with the grate-supporting plate 2'7 as indicated at 61,-the front plate 31 having the slotted ears 62 receiving the bolts 63 from plate 2'7.

It is believed that the novel features of construction and the advantages flowing therefrom will be readily apparent from the foregoing description. In summarizing it may be pointed out, however, that I have provided a heater having a complete return flue system whereby when the damper 19 is closed, as in Fig. 1, the products of combustion will be forced out through the "open ing '20, down through the flue 13 to the base plate and fines 7a, 7b to efiectually heat the surrounding floor area and pass upwardly through the flue 12 to the outlet chamber '15 communicating with the chimney. Not only will the floor be heated by the heating of the base plate 4, but also the lower portions of the side plates 10 and rear flue plate 11 will be heated so that the surrounding metal jacket will give off more heat than would otherwise be possible; and also the air discharged upwardly through the air flueswill be hotter than would be the case if only the heat therefor were supplied by the flre box. The ready removal of the fire pot 1'7 will obviously enable the grate 26 to be taken out in a most expeditious manner.

The heater is designed particularly for the burning of such fuel as hard coal, coke, and lignite coal, which are fuels practically free of smoke and adapt themselves readily to my heater, since their use will obviate the bother of frequently cleaning of the chamber '7 and the flues 7a, 71) through the cleanout opening which is normally closed by the member 9.

The mica windowed front of the stove provided by the doors 33, 34, and the plate 31 enables a cheerful glow to be cast into the room,-while the magazine 35 assures of an economical consumption of fuel and enables the heater to operate for long periods of time without attention.

Obviously many changes may be made in the invention as herein disclosed without departing from the spirit and scope of the subject matter claimed hereinafter, it being understood that the disclosures herein are to be taken merely as illustrative rather than limitative.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a stove having a casing providing a combustion chamber, a burner in said chamber, said casing having a side opening for removal of said burner, supporting means for said burner and including a removable member overlying said opening and partially closing the same.

2. In a stove having a casing providing a combustion chamber, a burner removably supported in said chamber, said casing having a side opening for removal of said burner, a removable member overlying said opening and partially closing the same, said removable member having a burner supporting portion, and interengaging elements carried by said casing and removable member intermediate the ends of the removable member for supporting the latter.

3. In a stove having a casing providing a combustion chamber, a door-carrying frame providing a portion of the front wall of said casing and communicating with said chamber, a burner removably supported in said chamber, said door carrying frame providing an opening for removal of said burner, a removable portion carried by said frame overlying said opening and partially closing the same, a. casing-bottom-heating flue manifold communicating with said chamber above said burner and having a return flue por tion providing an outlet, and a damper controlled opening in said casing below said burner and communicating with said return flue portion and being accessible upon removal of said burner.

4. A stove comprising in combination a casing providing a combustion chamber open at the top,

a fuel magazine in the upper part of said casing and having a removable lower portion, said magazine communicating with said combustion chamber, a burner in said combustion chamber, said casing having a side opening for removal of said burner, a closure for said opening and cooperating to support said burner, a loWer-casing-heating flue manifold having a damper-controlled opening communicating with said combustion chamber above said burner and having a return flue portion, a damper-controlled opening in said chamber wall below said burner and communicating with said return flue portion, and said first and second mentioned damper-controlled openings being accessible upon removal of said lower magazine portion and burner respectively.

5. In a heater, a combustion chamber-providing casing, a magazine including a fixed upper portion and a relatively movable lower portion, and means for locking said movable magazine portion in position against displacement, said locking means comprising a plate engaging and forming a continuation of one wall part of said movable magazine section, and holding means for said plate carried by said fixed magazine section.

6. In a stove having a casing providing a combustion chamber, having a side opening, a burner in said chamber and removable through said opening, a removable member adjacent said open- 'ing and having a burner supporting portion adapted to at least partially support said burner,

and interengaging elements carried by said casing and removable member intermediate theends of the removable member for supporting the latter.

7. In a stove having a casing providing a combustion chamber, having a side opening, a burner in said chamber and removable through said opening, a removable member adjacent said opening and having a burner supporting portion adapted to at least partially support said burner,

and interengaging elements carried by said casing and removable member for supporting the latter.

8. In a stove having a casing providing a combustion chamber having a side opening, a burner in said chamber and removable through said opening, a removable member adjacent said opening and having a burner supporting portion adapted to at least partially support said burner, and interengaging elements carried by said casing and removable member for supporting the latter, adjacent communicating manifolds at least in part provided by said casing, one manifold for conducting products of combustion downwardly toward the bottom of the stove, and the other for conducting same upwardly to an outlet, and a damper controlled opening in said casing below said burner and communicating with said up-flow manifold, said damper-controlled opening being accessible upon removal of said burner.

HENRY LANGE. 

